Rattus norvegicus (Berkenhout, 1769) (Rodentia: Muridae)’un entomopatojen bakteriler ile enfekte böcek kadavralarına tepkisinin belirlenmesi

Uluğ, Derya

doi:10.16970/entoted.1199313

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…The predominant bacteria Yersiniaceae in aphids probably horizontally transmit from aphids into larvae of hoverflies and successfully turn into the dominant bacteria as well. Interestingly, Morganellaceae has been reported to occur exclusively as symbionts of Rhabditida nematodes, for which they can kill insects and provide nutrition and defense within the cadavers (Maher et al, 2021;Ulug, 2023). Hence, we speculated that E. balteatus can be infected by some nematodes as other Syrphidae (Diptera) insects.…”

Section: Discussionmentioning

confidence: 97%

Episyrphus balteatus symbiont variation across developmental stages, living states, two sexes, and potential horizontal transmission from prey or environment

Chang,

Xue,

et al. 2024

Front. Microbiol.

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IntroductionEpisyrphus balteatus is one representative Syrphidae insect which can provide extensive pollination and pest control services. To date, the symbiont composition and potential acquisition approaches in Syrphidae remain unclear.MethodsHerein, we investigated microbiota dynamics across developmental stages, different living states, and two sexes in E. balteatus via full-length 16S rRNA genes sequencing, followed by an attempt to explore the possibility of symbiont transmission from prey Megoura crassicauda to the hoverfly.ResultsOverall, Proteobacteria and Firmicutes were the dominant bacteria phyla with fluctuating relative abundances across the life stage. Cosenzaea myxofaciens is dominant in adulthood, while Enterococcus silesiacus and Morganella morganii dominate in larvae and pupae of E. balteatus, respectively. Unexpectedly, Serratia symbiotica, one facultative endosymbiont commonly harbored in aphids, was one of the predominant bacteria in larvae of E. balteatus, just behind Enterococcus silesiacus. In addition, S. symbiotica was also surprisingly most dominated in M. crassicauda aphids (92.1% relative abundance), which are significantly higher than Buchnera aphidicola (4.7% relative abundance), the primary obligate symbiont of most aphid species. Approximately 25% mortality was observed among newly emerged adults, of which microbiota was also disordered, similar to normally dying individuals. Sexually biased symbionts and 41 bacteria species with pairwise co-occurrence in E. balteatus and 23 biomarker species for each group were identified eventually. Functional prediction showed symbionts of hoverflies and aphids, both mainly focusing on metabolic pathways. In brief, we comprehensively explored the microbiome in one Syrphidae hoverfly using E. balteatus reared indoors on M. morganii as the model, revealed its dominated symbiont species, identified sexually biased symbionts, and found an aphid facultative endosymbiont inhabited in the hoverfly. We also found that the dominated symbiotic bacteria in M. crassicauda are S. symbiotica other than Buchnera aphidicola.DiscussionTaken together, this study provides new valuable resources about symbionts in hoverflies and prey aphids jointly, which will benefit further exploring the potential roles of microbiota in E. balteatus.

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Section: Discussionmentioning

confidence: 97%

Episyrphus balteatus symbiont variation across developmental stages, living states, two sexes, and potential horizontal transmission from prey or environment

Chang,

Xue,

et al. 2024

Front. Microbiol.

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The use of Phasmarhabditis nematodes and metabolites of Xenorhabdus bacteria in slug control

Nermuť,

Konopická,

Weijler

et al. 2024

Appl Microbiol Biotechnol

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Many species of slugs are considered serious pests in agriculture and horticulture around the world. In Europe, slugs of the genera Arion and Deroceras are the most harmful pests in agriculture. Therefore, the main goal of this study was to evaluate the effect of the whole-cell metabolites of 10 strains of five Xenorhabdus and three slug-parasitic nematodes (Phasmarhabditis hermaphrodita, Phasmarhabditis bohemica, and Phasmarhabditis apuliae) on the feeding behaviour and repellent effect on target slugs and evaluate a new possible means of biocontrol of these pests. The repellent and anti-feedant effects of nematode-killed insects, metabolites, slug-parasitic nematodes and a combination of metabolites and nematodes were studied through experimental designs: sand-filled plastic boxes divided into two parts in several modifications: with dead Galleria mellonella killed by nematodes, lettuce treated with bacterial metabolites and lettuce placed on the treated sand. We found that slugs avoid eating G. mellonella killed by nematodes, while they eat freeze-killed G. mellonella. Similarly, they avoid the consumption of lettuce in areas treated with bacterial metabolites (the most effective strains being Xenorhabus bovienii NFUST, Xenorhabdus kozodoii SLOV and JEGOR) with zero feeding in the treated side. All three Phasmarhabditis species also provided a significant anti-feedant/repellent effect. Our study is the first to show the repellent and anti-feedant effects of metabolites of Xenorhabdus bacteria against Arion vulgaris, and the results suggest that these substances have great potential for biocontrol. Our study is also the first to demonstrate the repellent effect of P. apuliae and P. bohemica. Key points• Slugs avoid eating G. mellonella killed by entomopathogenic nematodes.• Bacterial metabolites have a strong repellent and antifeedant effect on slugs.• Presence of slug parasitic nematodes increases the repellent effect of metabolites.

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The effect of Xenorhabdus bacteria metabolites on Colorado potato beetle (Leptinotarsa decemlineata) adult feeding and larval survival

Půža,

Nermuť,

Konopická

et al. 2024

Journal of Invertebrate Pathology

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Rattus norvegicus (Berkenhout, 1769) (Rodentia: Muridae)’un entomopatojen bakteriler ile enfekte böcek kadavralarına tepkisinin belirlenmesi

Cited by 4 publications

References 31 publications

Episyrphus balteatus symbiont variation across developmental stages, living states, two sexes, and potential horizontal transmission from prey or environment

Episyrphus balteatus symbiont variation across developmental stages, living states, two sexes, and potential horizontal transmission from prey or environment

The use of Phasmarhabditis nematodes and metabolites of Xenorhabdus bacteria in slug control

The effect of Xenorhabdus bacteria metabolites on Colorado potato beetle (Leptinotarsa decemlineata) adult feeding and larval survival

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